Door retention device mechanism for a building entrance protector

Abstract

A building entrance protector having a housing unit. The housing unit is provided with a plurality of walls and a sidewall, the sidewall defining an outer side and an inner side. A door is coupled to the sidewall and rotatable about an axis of rotation with the door defining a frictionally engaging edge. The door is positionable between a closed position and a secured opened position. A frictionally engaging member is mounted on the outer side of the sidewall so that when the door is moved from the closed position to the secured opened position, the frictionally engaging edge interferes with the engaging member to restrain the door. Additionally, the distance from the axis of rotation to the frictionally engaging edge of the door is less than the distance from the axis of rotation to a frictionally engaging portion of the frictionally engaging member.

What is claimed is: 
     
       1. A building entrance protector comprising: a housing unit having a plurality of walls and a sidewall, said sidewall defining an outer side and an inner side;   a door coupled to said sidewall and rotatable about an axis of rotation, said door defining a frictionally engaging edge, said door positionable between a closed position and a secured opened position; and   a frictionally engaging member mounted on said outer side of said sidewall so that when said door is rotated from said closed position to said secured opened position, said frictionally engaging edge interferes with said engaging member to restrain said door from rotating to said closed position.   
     
     
       2. The building entrance protector in accordance with claim 1, wherein the distance from said axis of rotation to said frictionally engaging edge of said door is less than the distance from the axis of rotation to a frictionally engaging portion of the frictionally engaging member. 
     
     
       3. The building entrance protector in accordance with claim 1, wherein said sidewall of said building entrance protector and said frictionally engaging edge are fabricated from a flexible material. 
     
     
       4. The building entrance protector in accordance with claim 3, wherein said building entrance protector and said door are fabricated from a flexible material. 
     
     
       5. The building entrance protector in accordance with claim 1, wherein said frictionally engaging member is a boss mounted on said side wall, said boss having a frictionally engaging portion. 
     
     
       6. The building entrance protector in accordance with claim 5, wherein said boss is mounted on the center of said side wall. 
     
     
       7. The building entrance protector in accordance with claim 1, wherein said frictionally engaging member is positioned on the center of said sidewall. 
     
     
       8. The building entrance protector in accordance with claim 1, further comprising a notch in said frictionally engaging edge of said door, wherein said frictionally engaging member mounted on said sidewall frictionally interferes with said notch to restrain said door. 
     
     
       9. The building entrance protector in accordance with claim 8, wherein said building entrance protector and said door are fabricated from a flexible material. 
     
     
       10. The building entrance protector in accordance with claim 8 wherein said notch is positioned on the center of said frictionally engaging edge and said frictionally engaging member is positioned on the center of said outer sidewall of said housing.